Kbase P131281: Is there a way to Progress synchronize the clocks of the computers of an entire Network to an Atomi
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
5/8/2008 |
|
Status: Unverified
GOAL:
Is there a way to Progress synchronize the clocks of the computers of an entire Network to an Atomic Time?
FACT(s) (Environment):
OpenEdge 10.x
All Supported Operating Systems
FIX:
Progress has no capability to synchronize the clock of the computers of an entire network to an Atomic Time.
In the case the need to synchronize the clocks of computers and a network to Atomic Time the following approaches might be used:
1. Use Network Time Protocol (NTP) or Simplified Network Time Protocol.
The Network Time Protocol (NTP) is a protocol for synchronizing the clocks of computer systems over packet-switched, variable-latency data networks. This Protocol has been available for many years. Several hardware devices are available in the marked to connect to the existing network and synchronize the network time to Atomic Time. Those hardware devices are GPS based and receive the time from an Atomic Clock via Satellite.
2. Install Atomic Clock Software on the PCs.
The National Institute of Standards and Technology (NIST) has Freeware software that can be downloaded and installed on each of the PCs of the network. The PCs will refresh the time of the machine on a periodical basis decided by the user. This might however cause some traffic on the network depending on the frequence you need to refresh the Atomic Time. The software will retrieve the Atomic Time from the NIST Atomic Time Servers. The software is called Atomic Clock Sync.
3. On Windows using Windows Time Service.
The Windows Time service (W32Time) is designed to maintain date and time synchronization for computers running Windows 2000XP/2003. To ensure this system works properly, both the client and the domain controller clocks must be loosely synchronized within the allowable skew, and W32Time ensures this is the case. W32Time is based on the Simple Network Time Protocol (SNTP). SNTP is designed to ensure loose synchronization only, which in the W32Time implementation means the clocks of all Windows 2000/XP/2003 machines in a forest will agree within 20 seconds of one another (or 2 seconds difference within a particular site). W32Time expresses clock times in Coordinated Universal Time (UTC), an atomic time scale previously known as Greenwich Mean Time (GMT). W32Time is started by default on Windows XP and Windows Server 2003 machines regardless of whether they belong to a workgroup or a domain. On Windows 2000 however, W32Time must be manually started on machines belonging to a workgroup. If you need Atomic precision you will need to install Atomic Clock Sync on top of W32Time.